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Posted to issues@hbase.apache.org by "Heng Chen (JIRA)" <ji...@apache.org> on 2016/02/03 09:34:39 UTC
[jira] [Commented] (HBASE-15210) Undo crazy load balancer logging
at tens of lines per millisecond
[ https://issues.apache.org/jira/browse/HBASE-15210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15130020#comment-15130020 ]
Heng Chen commented on HBASE-15210:
-----------------------------------
what about these logs?
{code}
2016-01-28 05:56:22,572 DEBUG [ve0524.halxg.cloudera.com,16000,1453988766013_ChoreService_1] balancer.BaseLoadBalancer: Server ve0526.halxg.cloudera.com had 0 regions.
2016-01-28 05:56:22,572 DEBUG [ve0524.halxg.cloudera.com,16000,1453988766013_ChoreService_1] balancer.BaseLoadBalancer: Server ve0532.halxg.cloudera.com had 0 regions.
2016-01-28 05:56:22,572 DEBUG [ve0524.halxg.cloudera.com,16000,1453988766013_ChoreService_1] balancer.BaseLoadBalancer: Server ve0538.halxg.cloudera.com had 0 regions.
{code}
> Undo crazy load balancer logging at tens of lines per millisecond
> -----------------------------------------------------------------
>
> Key: HBASE-15210
> URL: https://issues.apache.org/jira/browse/HBASE-15210
> Project: HBase
> Issue Type: Sub-task
> Components: Balancer
> Affects Versions: 1.2.0
> Reporter: stack
> Assignee: stack
> Attachments: 15210.patch
>
>
> Sometimes the load balancer falls into a state of crazy logging in 1.2.0 writing out ten lines a millisecond like this:
> {code}
> 2016-02-02 17:15:01,382 DEBUG [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1] balancer.BaseLoadBalancer: Lowest locality region server with non zero regions is ve0540.halxg.cloudera.com with locality 0.22908874
> 2016-02-02 17:15:01,382 DEBUG [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1] balancer.BaseLoadBalancer: Lowest locality region index is 3 and its region server contains 4 regions
> 2016-02-02 17:15:01,384 DEBUG [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1] balancer.BaseLoadBalancer: Lowest locality region server with non zero regions is ve0540.halxg.cloudera.com with locality 0.22908874
> 2016-02-02 17:15:01,384 DEBUG [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1] balancer.BaseLoadBalancer: Lowest locality region index is 3 and its region server contains 4 regions
> 2016-02-02 17:15:01,386 DEBUG [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1] balancer.BaseLoadBalancer: Lowest locality region server with non zero regions is ve0540.halxg.cloudera.com with locality 0.22908874
> 2016-02-02 17:15:01,386 DEBUG [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1] balancer.BaseLoadBalancer: Lowest locality region index is 2 and its region server contains 4 regions
> 2016-02-02 17:15:01,387 DEBUG [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1] balancer.BaseLoadBalancer: Lowest locality region server with non zero regions is ve0540.halxg.cloudera.com with locality 0.22908874
> 2016-02-02 17:15:01,387 DEBUG [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1] balancer.BaseLoadBalancer: Lowest locality region index is 3 and its region server contains 4 regions
> 2016-02-02 17:15:01,388 DEBUG [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1] balancer.BaseLoadBalancer: Lowest locality region server with non zero regions is ve0540.halxg.cloudera.com with locality 0.22908874
> 2016-02-02 17:15:01,388 DEBUG [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1] balancer.BaseLoadBalancer: Lowest locality region index is 3 and its region server contains 4 regions
> 2016-02-02 17:15:01,388 DEBUG [ve0524.halxg.cloudera.com,16000,1454461776827_ChoreService_1] balancer.BaseLoadBalancer: Lowest locality region server with non zero regions is ve0540.halxg.cloudera.com with locality 0.22908874
> {code}
> This issue is about less logging.
> This log was added recently by this:
> commit 54028140f4f19a6af81c8c8f29dda0c52491a0c9
> Author: tedyu <yu...@gmail.com>
> Date: Thu Aug 13 09:11:59 2015 -0700
> HBASE-13376 Improvements to Stochastic load balancer (Vandana Ayyalasomayajula)
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